| # Copyright 2013 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import os |
| |
| import verifier |
| |
| |
| class FileVerifier(verifier.Verifier): |
| """Verifies that the current files match the expectation dictionaries.""" |
| |
| def _VerifyExpectation(self, expectation_name, expectation, |
| variable_expander): |
| """Overridden from verifier.Verifier. |
| |
| This method will throw an AssertionError if file state doesn't match the |
| |expectation|. |
| |
| Args: |
| expectation_name: Path to the file being verified. It is expanded using |
| Expand. |
| expectation: A dictionary with the following key and value: |
| 'exists' a boolean indicating whether the file should exist. |
| variable_expander: A VariableExpander object. |
| """ |
| file_path = variable_expander.Expand(expectation_name) |
| file_exists = os.path.exists(file_path) |
| assert expectation['exists'] == file_exists, \ |
| ('File %s exists' % file_path) if file_exists else \ |
| ('File %s is missing' % file_path) |